If you are recording, you need to hear what you are playing in real-time (lower latency). So one question to ask yourself is: are you optimizing for live performance or stability? Higher Buffer Size = More Latency = Less CPU Usage Lower Buffer Size = Less Latency = More CPU Usage This means there is a tradeoff to make between CPU load and latency. Note here the inverse correlation between buffer size and latency. Need a more visual explanation? Check out this video: Think of a website taking too long to load, an email not going through, or a game freezing and then moving again. In networks, latency refers to the time it takes for a request to go from the source to the destination. Latency is the time it takes for data to move from one point to another. So before diving any further, let’s clarify some terminology that will be used throughout this guide. And we all know the link between workflow and creativity. However, working with hardware and software also requires a basic understanding of technology.Īnd although buffer sizes and sample rates are not the most exciting topics, they are crucial to ensuring a smooth workflow. 5 Tips to Save Your CPU in Ableton LiveĪs electronic music producers, we generally think of ourselves as artists.Close Any Other Programs and Computer Functions.The laptop has no problems with that, as long as I don't exceed the free space on the drive where HDSDR is writing those recordings. Then another pair of limitations comes into play - small size of tablet's C: drive (16 or 32 GB, in my case), and very slow transfer rate when using a micro-SD card as the tablet's D: (or some other letter) drive for HDSDR to write those RF recordings. I still end up with 400 to 600 MB for a satellite pass of 15 to 20 minutes, which is better than only starting the discussion with a recording that is a couple of GB. Otherwise, when I use HDSDR to write an RF recording of the satellite transponder, those recordings would be huge for only a few minutes of data. In fact, I usually keep the bandwidth down to 200 kHz in most cases. I don't need to really use 8 MHz bandwidth when I use my SDRplay as a downlink receiver when working amateur satellites. On a Windows 7 laptop with more memory and a bigger CPU, I can use the same SDRplay with HDSDR and have no issues receiving up to the maximum 8 MHz bandwidth. To me, this appears to be a case of the computer can't keep up with the data coming in on the USB cable from the SDRplay. I can usually get to the 1.544 MHz range without hearing the stuttering. With these small devices, I can't even dream of using the SDRplay to receive up to 8 MHz bandwidth at one time. I have been able to use my SDRplay and HDSDR on the inexpensive Windows 10 (32-bit) tablets with 1 GB or 2 GB RAM and the small Intel Atom quad-core CPUs. What bandwidth are you trying to receive? How do I resolve this problem so that the audio is uninterrupted and the waterfall scrolling continues? When this happens the CPU bar at the bottom of the screen says something like: Ai8o wrote:I am using HDSDR on a WIN 7 computer.Īt times the waterfall stops scrolling up, and the audio stutters.
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